16662034611668 has 24 divisors (see below), whose sum is σ = 29637219596544. Its totient is φ = 8194263573600.

The previous prime is 16662034611661. The next prime is 16662034611679. The reversal of 16662034611668 is 86611643026661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16662034611661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10764113 + ... + 12214343.

It is an arithmetic number, because the mean of its divisors is an integer number (1234884149856).

Almost surely, 2^{16662034611668} is an apocalyptic number.

It is an amenable number.

16662034611668 is a deficient number, since it is larger than the sum of its proper divisors (12975184984876).

16662034611668 is a wasteful number, since it uses less digits than its factorization.

16662034611668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497383 (or 1497381 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 56.

The spelling of 16662034611668 in words is "sixteen trillion, six hundred sixty-two billion, thirty-four million, six hundred eleven thousand, six hundred sixty-eight".